Recycle waste water after effluent treatment or sewerage plant .this treated can easily be used for agricultural requirement , gardening and can be used in flush systems for urinal.

Washing of factory floors can be replaced by mopping .

Put sensors in common bathrooms,urinal etc.

Rain Harvesting : Industry should be asked to encourage rain harvesting in their factory permises and all residential building should have provision for rain harvesting

SPENT OIL

All manufacturing unit generates spent oils from their machinary and equipments major sources are generators , compressors,gear boxes.These spent oils can be recycled by using filteration unit and can be used in fuel like ldo , rfo etc .

Similiarly used lubricants likegrease can be used by othersas their basic raw material.